import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)


const router = new VueRouter({
  routes:[
    {path: '/', redirect:'/login'},
    {path: '/login',component:Login},
    {path: '/home',
    component:Home,
    redirect:'/welcome',
    children:[{path:'/welcome',component:Welcome},
    {path:'/users',component:Users},
    { path: '/rights', component: Rights },
        { path: '/roles', component: Roles },
        { path: '/categories', component: Cate },
        { path: '/params', component: Params },
        { path: '/goods', component: GoodsList },
        { path: '/goods/add', component: Add },
        { path: '/orders', component: Order },
        { path: '/reports', component: Report }
        
  ]
    }
  ]
})

//挂载路由导航守卫
router.beforeEach((to,from,next)=>{
  // to 将要访问的路径
  //from表示从哪个路径跳转而来
  //next 是一个函数，表示放行
  // next()  放行  next('/login') 强制跳转

  if(to.path === '/login')return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if(!tokenStr) return next('/login')
  next()

})
export default router
